3.1V 至 75V 宽输入电压、1A 电流模式非同步开关模式稳压器
| Vin (Min) (V) | 3.1 |
| Vin (Max) (V) | 75 |
| Vout (Min) (V) | 1.26 |
| Vout (Max) (V) | 75 |
| Switch current limit (Typ) (A) | 1 |
| Regulated outputs (#) | 1 |
| Switching frequency (Min) (kHz) | 50 |
| Switching frequency (Max) (kHz) | 1500 |
| Iq (Typ) (mA) | 3.1 |
| Features | Enable, Frequency Synchronization, UVLO Adjustable |
| Duty cycle (Max) (%) | 85 |
| Rating | Catalog |
- AEC-Q100 Qualified (TJ = –40°C to 125°C)
- Integrated 75-V N-Channel MOSFET
- Ultra-Wide Input Voltage Range from
3.1 V to 75 V - Integrated High Voltage Bias Regulator
- Adjustable Output Voltage
- 1.5% Output Voltage Accuracy
- Current Mode Control with Selectable
Compensation - Wide Bandwidth Error Amplifier
- Integrated Current Sensing and Limiting
- Integrated Slope Compensation
- 85% Maximum Duty Cycle Limit
- Single Resistor Oscillator Programming
- Oscillator Synchronization Capability
- Enable / Undervoltage Lockout (UVLO) Pin
- Thermal Shutdown
The LM5001 high-voltage switch-mode regulator features all of the functions necessary to implement efficient high-voltage Boost, Flyback, SEPIC and Forward converters, using few external components. This easy-to-use regulator integrates a 75-V N-Channel MOSFET with a 1-A peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.
